Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

PARKLAND, FL - FEBRUARY 20:  Marissa Rodriguez (L) and Ambar Ramirez visit a makeshift memorial setup in front of Marjory Stoneman Douglas High School in memory of the 17 people that were killed on February 14, on February 20, 2018 in Parkland, Florida. Police arrested 19-year-old former student Nikolas Cruz for killing 17 people at the high school.  (Photo by Joe Raedle/Getty Images)
PARKLAND, FL - FEBRUARY 20:  Marissa Rodriguez (L) and Ambar Ramirez visit a makeshift memorial setup in front of Marjory Stoneman Douglas High School in memory of the 17 people that were killed on February 14, on February 20, 2018 in Parkland, Florida. Police arrested 19-year-old former student Nikolas Cruz for killing 17 people at the high school.  (Photo by Joe Raedle/Getty Images)

    JUST WATCHED

    Officials: Gunman stopped with 180 rounds left

MUST WATCH

Officials: Gunman stopped with 180 rounds left

Officials tell CNN's Kaylee Hartung that the deadly Florida high school shooting could have been much worse, and ammunition magazines had swastikas etched in them.

Officials: Gunman stopped with 180 rounds left

Officials tell CNN's Kaylee Hartung that the deadly Florida high school shooting could have been much worse, and ammunition magazines had swastikas etched in them.